Gifted violinist Moon Haewon has been avoiding deep connections after his mother's tragic death. But his life takes a turn when his only friend Taeshin commits suicide, leaving Haewon guilt-ridden for ignoring his calls. At a police interview, Haewon encounters Hyeon Wujin, a special prosecutor and the subject of Taeshin's unrequited love. Haewon's life spirals further as he's drawn into an assault case, and he seeks Wujin's help. Their interactions intensify, with Wujin challenging Haewon's emotional barriers. Swayed by Wujin, Haewon confronts a tangle of guilt, passion, and fear of true connection.